can you just send them a certified mail with return receipt .

if they don't sign it, the postoffice will tell you they refuse to sign.

at lease it will proove you send them something.

所有跟帖： 

• yes, that's could be the right way to do. -左右为难a- ♀ (0 bytes) () 02/24/2012 postreply 09:57:56

• refusal of certify mail count as no service. -jy101- ♂ (44 bytes) () 02/24/2012 postreply 10:51:48

• 大佬，你说的是对的。这也是我左右为难的原因。 -左右为难a- ♀ (454 bytes) () 02/24/2012 postreply 11:31:05